Air conditioning device



July 21, 1936. .D Y 2,048,246

AIR CONDITIONING DEVICE Filed March 27, 1953 3 Shee ts-Sheet l INVENTOR,

4 ATTORNEY July 21, 1936. D, DASHER 2,048,246

AIR CONDITIONING DEVICE Filed March 27, 1933 3 Sheets-Sheet 2 July 21,1936. DASHER 2,048,246 AIR CONDI-TIONING DEVICE- Filed March 2'7, 1933 3Sheets-Sheet 3 INVENTOR,

4/5 ATTORNEY Patented July 21, 1936 UNlTED STATES PATENT OFFICE AIRCONDITIONING DEVICE Ohio Application March 27, 1933, Serial No. 662,937

17 Claims.

This invention relates to new and useful improvements in airconditioning devices.

It is one of the principal objects of my invention to provide an airconditioning deviceof the .5 ceiling fan, bracket or pedestal type thatwill distribute the conditioned air laterally in all directions. Iteffects an equal gravitational distribution, and even diffusion, of theconditioned air without draft or blast.

10 It is another object of the invention to provide a pump, preferablydriven from the fan shaft, for removing the condensation from the airconditioning device.

It is another object of my invention to provide 15 electric lights onthe fan housing for direct or indirect lighting.

Itis another object of my invention to provide means for discharging theair laterally from the fan, or for drawing it in through the sides 20and discharging it through the top or bottom of the fan housing.

Other important and incidental objects will be brought out in thefollowing specification and particularly set forth in the subjoinedclaims.

25 In the accompanying drawings illustrating the different forms ofembodiment of my invention, Figure 1 is a longitudinal-sectional viewtaken through my ceiling type of fan for discharging the air laterallyin all directions. Figure 2 is a side elevational view of a wall brackettype of fan. Figure 3 is a side elevational view of a pedestal type offan. Figure 4 is a longitudinal sectional view through the fan portionof the pedestal unit. And Figure 5 is a longi- 35 tudinal sectional viewtaken through a ceiling type of fan unit in which the air enters at thesides and top and is discharged laterally from the bottom in alldirections.

Referring to the accompanying drawings for 40 a detailed description ofthe different forms of embodiment of my invention illustrated therein,the numeral l inFigure 1 designates a ring adapted to be secured to aroom-ceiling 2 audio receive bracket screws 3. The ring I is provided 45with a cross member 4 which is attached to the ceiling by a stud 5.

Secured to the ring I by the screws 3 are bracket arms 6 which terminateat their lower ends in vertical. portions 1. The latter are con- 50nected by fastening elements such as bolts '8 to the upper end of avertical tubular member 9 to which there is secured by screws i anornamental casing II that surrounds the bracket arms and is itselfattached to the ring I. (See 55 Figure 1.) 1

Secured by screw bolts l2 to the lower end of the tubular member 9, arethe upturnedends of bracket arms l3. The latter, in turn, are secured tovertical arms l4 which terminate in long horizontal ends i5. Attached tothe horizontal ends l5 of the arms l4, are cylindrical rubber pads l6that are recessed to fit holes in a plate I! that has a central, flangedneck portion l8. By means of the pads l6, and studs l9 which passthrough them the plate I1 is supported by 10 the arms id in a.substantially noiseless manner.

Securedto similar rubber pads 20 connected by screws 2i to the plate I 1near its tubular neck portion l8, are bracket arms 22, 22 attached attheir upper ends by screws 23 to a vertically disposed electric motor 24to support the same. Surrounding the motor 24 is a cylindrical housing25 and a dome-shaped cover 26 above it. The housing 25 is secured byflanged foot members 21 to the horizontal portions of the arms I4, whilethe dome-shaped cover 26 has a neck part 28 which is attached by screws29 to the tubular member 9. (See Figure 1.) The members 26 and formtogether an ornamental casing for the motor 24 and its surroundingparts.

Projecting downwardly from the motor 24 is an armature shaft 30 to whichis attached the hub 3| of a conventional centrifugal, multi-vane fan 32.Surrounding this fan is an evaporator 33 preferably comprising a spiralexpansion coil 30 34 supported by U-rods 35. These U-rods are secured attheir upper ends to bars 36 which are. attached to the horizontalportions of the arms l4, below the pads l6 and washers 31, by the studsl9.

Depending from the outer, flat annular edge portion 38 of the plate I1,is a circumferential series of studs 39 with. ornamented heads, andcarrying on their lower ends ornamental nuts 40. Secured to thesestudsat suitable distances apart, 40 are flat rings 4| between whichconditioned air is discharged laterally outward by the fan 32 in alldirections, as indicated by the arrows in Figure 1. This air is cooledby the expansion coil 34 between whose spirals it passes in its out- Thelower end of the coiled liquid refrigerant, inlet tube 42 communicateswith an expansion valve 48 from whence the gaseous refrigerant flowsthrough a tube 41 into the expansion coil 1 cool the warm liquidrefrigerant which enters the latter. The sleeve 49 terminates in aT-fltting 58 from which the gaseous refrigerant is returned to thecompressor through a tube 5| which, with the liquid inlet tube 42,passes through the depending tube 9, ring I and ceiling 2, to saidcompressor.

'I'hemoisture or water of condensation which the expansion coil 34abstracts from the air forced past it by the fan 32, drops upon a pan 52secured to the studs 39 immediately above the nuts 48. This pan 52 has acentral flanged neck portion 53 around which studs 54 project downwardlyfrom the pan. Secured to the lower ends of these studs 54 by ornamentednuts 55 is a pan 58 into which the water of condensation is dischargedby the pan 52.

Secured to the studs 54, are two flat rings 51 having downwardlyinclined portions for deflecting the air that enters between them,downwardly and inwardly for entrance through the central open portionsof said rings to the centrifugal fan 32 which is directly above the openneck portion 53 of the pan 52, as indicated by the arrows in Figure l.

For the purpose of removing the water of condensation from the bottompan 58, I provide a pump 58 whose base 59 is secured to rubber pads 88similar to the pads I8. These pads are secured by screws GI and nuts 62to the horizontal portions 53 of bracket arms 64 having flanged upperends that are attached by screw bolts to the pan 52. This pump 58 ispreferably driven by a shaft 68 which has a spring and pin connection 81to the lower end of the motor armature shaft 38.

Thus the motor 24 not only drives the fan 32, but also the pump 58 fromthe same armature shaft. By means of a short curved tube Iii'I' thewater of condensation is drawn from the pan 56 by the pump anddischarged therefrom through a tube 68 that passes upwardly with thetubes 42 and 5| through the depending tube 9, ring I and ceiling 2 -to adrain Pipe (not shown).

In Figure 2 I have. illustrated a wall bracket type of air conditioningfan. This type is in all respects similar tov the fan which I have justdescribedsave that the tubular member 9 is attached at its upper end tothe horizontal arm 89 of an ornamented wall bracket I8. The arm 89 ishollow to receive the refrigerant inlet tube 42, the gas outlet tube 5|,and the condensation discharge tube 88. These tubes pass through thevertical portion of the bracket 18' and the wall 1| to which saidbracket is secured by screws".

Mounted on the top portion of the outer end of the arm 89, directlyabove the air conditioning fan unit, is an indirect lighting lamp 13.

The wall bracket type of my air conditioning unit is so supported by thebracket that the conditioned air will bev discharged laterally in alldirections by the same.

In Figures 3 and 4 I have illustrated a pedestal type of airconditioning unit. In these figures the pedestal comprises a columnhaving a base I5 and a cap Hi. The base, column and cap of the pedestalare hollow, and support an air conditioning fan unit of the general typedisclosed 5 in Figure 1.

Referring to Figure 4 for a detailed description of this fan unit, thenumeral 11 designates a bottom water condensation pan that rests uponthe top of the cap .16, which in turn surrounds l8 and is supported bythe upper end of the column Secured to the pedestal cap'16 by longscrews I8 which pass downwardly through the pan 11 into the cap are thefoot portions I9 of vertical 16 supporting members 88 which terminate attheir upper ends in horizontal parts 8|. Secured to the latter by studs82 are vertical shafts 83 which, at their upper ends, support a plate 84similar to the plate I1.

Secured to the plate 84 directly over the shafts 83, by long studs 85which pass through "them and the plate into the shafts 83, are rubberpads 88 similar to the pads I5. Attached to these pads are bracket arms81 to the upper ends of 15 which a vertically disposedelectric motor 88is secured.

Secured to the plate 84 in two circumferential rows are rubber pads 98similar to the pads I 6. The horizontal portions 9| of the arms 92'aresecured upon these two rows of pads by the studs 93. Attached to thebottom portions of these pads 98 by the same studs 93 are horizontalbars 91 to which U-rods 98, similar to the U-rods 35, are secured. I

The U-rods 98 support an expansion coil 99 similar to the expansion coil34. This expansion coil or evaporator 99 so supported by the U-rods 98,surrounds a centrifugal fan I88 of the multivane type similar to the fan32. This fan I88 is mounted upon a hub |8| secured to the armature shaftI82 of the motor 88.

The fan I88 forces laterally between the coils of the evaporator 99, theair to be cooled by the latter and discharged laterally in alldirections by the flat rings I83 similar to the rings 4| and mountedupon vertical studs I 8.4. These studs depend in a circumferentialseries from the outer horizontal annular edge portion I85 of the plate84. To the lower ends of the pins I84 the outer annular horizontal edgeportion I88 of a condensation pan IN is secured by nuts I88. This pan,which is similar to the pan 52, has a central flanged neck portion I89that surrounds the lower end of the fan I88.

v Depending from the pan III'I around the upper ends of the verticalmembers 88, are studs IIII to which the upper annular horizontal edgeportion III of the pan I1 is secured by nuts II2.

Attached to the studs I I8 are two flat rings113 having downwardlyinclined portions for deflecting the air that enters between them,downwardly' and inwardly for entrance through the central open portionsof said rings to the centrifugal fan I 88, as indicated by the arrows inFigure 4.

For the purpose of removing the water 01mm 7 densation which descendsinto the bottom pan 11 from the pan I01, I have provided a pump II4similar to the pump 58. This .pump is mounted upon a base plate I I5which is supported by rubber pads 18 that are secured to the footportion 19 of the vertical members 00 by the screws 18. (See Figure 4.)The water of condensation from the pan 11 is drawn into the pump througha short curved tube H6, and discharged by said pump through a tube II1that passes downwardly through the hollow pedestal to a drain not shown.The pump II 4 is driven through a shaft II8 connected by a spring andpin connection II9 with the armature shaft I02 of the motor 88.

The liquid refrigerant is admitted through a tube I20 which passes froma compressor (not shown) through the hollow pedestal to a coil jacket orsleeve I2I. This coil I2I surrounds the bracket arms 92 and is heldagainst them by vertical retaining members I22 similar to the retainingmembers 44, and. attached to said tube I25 into the expansion coil 99which surrounds the centrifugal fan I00, to cool the air set in lateralmotion in all directions by the fan.

Through a tube I26 connected with the outlet end of the expansion coil99, the cooled gaseous refrigerant is discharged into a T-fitting I21which communicates with the coil 'slceve or jacket I2I that surroundsthe inlet tube I20, to cool the warm liquid refrigerant that enters thelatter.

The coil sleeve I2I terminates in a T-fltting I28 from which the gaseousrefrigerant'is returned to the compressor through a tube I29 which, withthe liquid inlet tube I20 and condensation outlet tube II 1, passesthrough the hollow pedestal to said compressor. (See Figures 3 and 4).Mounted on the top middle portion of the housing 89 is an indirectlighting lamp I30. (See Figure 3.)

In Figure 5 I have illustrated a ceiling type of fan unit that isconstructed to receive air through the sides and top and discharge itlaterally through the bottom. In this figure I have shown aceiling-supported tubular member I3I to which bracket arms I32 similarto the bracket arms I3, are secured.

Vertical arms I33 terminating in the horizontal, lower ends I34 aresecured to the bracket arms I32. Rubber pads I35, similar to the padsI6, are secured to the ends I34 of the arms I33 to noiselessly support aplate I36 having a central opening I31. I

Secured to rubber pads I fixed to the upper surface of the plate I36around the opening I31, are bracket arms I39 which support a verticallydisposed electric motor I 40. Surrounding this motor I40 is acylindrical housing MI and a dome-shaped cover I42, thehousing beingmounted upon the horizontal portions I34of the arms I33, while the coverdepends from the tubular member I 3I.

Surrounding the arms I33 is a coiled sleeve I43 supported by retainingmembers I44 secured to said arms. Through this sleeve I43 there passes atube I45 that conducts a liquid refrigerant downwardly through thetubular member I3I from a compressor not shown. Through an opening I46in the top of the housing I air enters the latter and passes downwardlyin the direction of the arrows through the opening I31 in the plate I36for circulation by a fan to be hereinafter described. (See Figure 5.)

At its lower end the liquid refrigerant inlet tube I45 communicates withan expansion valve I41 from whence the gaseous refrigerant flows througha tube I48 into an expansion coil I49 similar to the expansion coil 34and similarly supported beneath the plate I36 by U-rods I50 connected tobars I5I secured to the pads I35. (See Figure 5.)

Depending from the outer, flat annular edge portion I52 of the plateI36, is a circumferential series of studs I53. Secured to these studs atsuitable distances apart, are flat rings I54 between which air entersthe unit for cooling by the refrigerant expansion coil I49 before beingdischarged by thev fan soon to be described.

The moisture or water of condensation abstracted from the air by theexpansion coil, drops upon a pan I 55 which is secured to the lower endsof the studs I53 by nuts I56. This pan is formed at its middle portionwith a wide opening I51 defined by an annular upturned flange I58. (SeeFigure 5.)

Mounted upon the bottom of the pan I 55 around, and closely adjacent to,the flange I58, are rubber pads or feet I59 which support a base plateI60 having a downwardly projecting, internally threaded, hollow boss I6I through which the upper portion of a fan shaft I62 passes. This shaftis connected at its upper end by a coupling I63 to the armature shaftI64 of the motor I40.

Secured to the lower end of the armature shaft I64 is the rotor I65 of arotary pump I66 mounted on the base plate I60, and which is incommunication with the drip pan I55 through a tube I61 which enters thepan through a hole in its flange I58. The water of condensation drawnfrom this drip pan I55 by the pump I66 is forced by the latter into anoutlet tube I 61*- which passes through the tubular member I 3I,adjacent the liquid refrigerant tube I45, to a drain, not shown.

The numeral I10 designates a multi-vane fan having a hub "I attached tothe lower end of the shaft I62. After passing the expansion coil I49,the air conditioned by the latter enters the fan I10 as indicated by thearrows in Figure 5, and by the fan is ,forcedlateraily in all directionsthrough the openings defined by the flat rings I12 mounted on studsI13.' These studs depend from the drip pan I55, and have secured totheir lower ends, by nuts I14, a base pan I15 directly below the fan.

Through a tube I16 connected with the outlet end of the expansion coilI49, the cool gaseous refrigerant enters the tubular sleeve or jacketI43 to cool the warm liquid refrigerant which passes through the latterin the tube I45. The sleeve I43 terminates in a T-fitting I11 from whichthe gaseous refrigerant is returned to the compressor, not shown,through a tube I18 which passes through the tubular member I3I with therefrigerant inlet tube I45 and condensation discharge tube I61. (SeeFigure 5.)

Having described my invention, I claim:

1. In a device of the type described, a support, a housing secured tosaid support, a centrifugal, multi-vane fan within said housing, a refrgerant-evaporator coil surrounding the fan within the housing, andspaced fiat rings surrounding the evaporator coil, within the housing,to difevaporator coil surrounding the fan within the housing, andvertically spaced flat rings surrounding the evaporator coil, within thehousing, to difiuse the air conditionedby the coil laterally in alldirectiona Y 3. Ina device of the type described, a support,

a housing secured to said support, an electric motor within saidhousing, an armature shaft on said-motor, a fan secured to said armatureshaft within the housing, a refrigerant-evaporator coil associated withsaid fan within the housing to condition the air forced past it by saidfan, a pan in said housing to receive the water of condensationabstracted from the air by said refrigerant-evaporator coil, and a pumpsecured to said armature shaft for forcing the water of condensationfrom said pan. a

4. In a device of the type described, a support, a housing secured tosaid support, an electric motor within said housing, an armature shafton said motor projecting axially of the housing a fan secured to saidarmature shaft within the housing, a refrigerant-evaporator coilsurrounding the fan within the housing, to condition the air forced pastit by the fan, a drip pan at the bottom of said housing to receive thewater of condensation abstracted from the air by saidrefrigerant-evaporator coil, and a pump attached to said armature shaftbelow the fan to force the water of condensation from said drip pan.

5. In a device of the type described, a support, a housing secured tosaid support, a vertically disposed electric motor within said housing,an

armature shaft projecting downwardly from said' motor, a centrifugalmultivane fan mounted on said armature shaft within the housing, arefrigerant-evaporator coil surrounding said fan within the housing, andmeans for introducing air to said fan through the bottom and top of saidhousing, and means in the side of said housing adjacent therefrigerant-evaporator coil for discharging the air moved past said coilby the fan, laterally in all directions.

6. In a device of the type described, a hollow pedestal, a fan housingsupported on said pedestal, a fan within said housing, arefrigerantevaporator coil surrounding said fan within the housing tocool the air set in motion by the fan, vertically spaced members in saidhousing around the evaporator coil to diffuse the conditionedairlaterally in all directions, a liquid refrigerant tube passing upwardlythrough said pedestal-Ito the evaporator coil, and a gas discharge tubepassing downwardly from said evaporator through said pedestal. 7. In adevice of the type described, a hollow pedestal, a fan housing supportedon said. pedestal, a fan within said housing, a refrigerantevapo'ratorassociated with said fan in said housing to cool the air set in motionby the fan, said housing formed with openings to discharge said airlaterally in all directions, a pan below said evaporator to receive thewater of condensation, I

j a pump for drawing said condensation from the pan, a condensationdischarge tube leading from said pump downwardly through said pedestal,a

tube for conducting liquid refrigerant to said evaporator and a tube forwithdrawing gas from the latter, also in said pedestal.

8. In a device of the type described, a support, a housing secured tosaid support, a vertically disposed motor in said housing, an armatureshaft projecting downwardly from said motor, a centrifugal, a'multi-vane fan on said armatm'e shaft, within the housing, arefrigerant-evaporator coil surrounding the fan within thehousing, thebottom and top of said housing formed .with openings to admit air to thefan, and spaced horizontal members defining openings in the side of saidhousing around the refrigerant-evaporator coil to diifuse outwardly inall directions the air forced past said coil by the fan.

9. I'he combination with a wall bracket having a hollow horizontal arm,a fan housing depending from the outer end, of said am, a fan in saidhousing, a refrigerant-evaporator surroundin the fan in said housing tocool the air set in motion by the fan, said housing having side openingsfor difiusing said air laterally in all directions, a liquid refrigeranttube passing through the hollow arm of said bracket to the evaporator,and a gas discharge tube connected to the latter and also passingthrough said hollow bracket arm.

10. In a device of the type described, a support, a housing secured tosaid support, arefrigerantevaporator within said housing, meanssurrounding said evaporator to admit air laterally thereto, a fan insaid housing below the evaporator, means for directing air cooled by theevaporator, to the fan, and means for difiusing laterally in alldirections, the cool air set in motion by the fan.

11. In a device of the type described, a support, a housing secured tosaid support, an electric motor in said housing, an armature shaftprojecting downwardly from said motor, a refrigerant-expansion coilsurrounding said shaft within the housing, means surrounding theexpansion coil to admit air laterally thereto, a fan operated by thearmature shaft in said housing below the expansion coil, means fordirecting air cooled by the evaporator coil, to the fan, and means fordiiiusing laterally in all directions the cool air set in motion by thefan.

12. In a device of the type described, a support,

expansion coil, to set in motion and discharge the air cooled by saidcoil, apan below the expansion coil to receive water of condensationfrom fjth'e latter, and a pump secured to said armature shaft betweenthe motor and the expansion coil to remove the water of condensationfrom said pan.

13. In a device of the type described, a support, a housing secured tosaid support, a fanwithln said housing, a refrigerant-evaporatorsurrounding the fan within said housing, and diffusing means within thehousing, surrounding the refrigerant-evaporator, to diffuse the aircondi tioned by the evaporator laterally in all directions. 14. In adevice of the type described, a support, a housing secured to saidsupport, a fan within said housing, a refrigerant-evaporator coilsurrounding the fan within the housing, and spaced horizontal meansdefining openings in the housing around the refrigerant-evaporator coil,to diffuse the air conditioned by said coil outwardly in all directions.

15. In a device of the type described, a support, a housing secured tosaid support, a. fan within the housing, refrigerant-evaporator meansassociated with said fan within the housing to condition the air forcedpast it by said fan, a receptacle in the housing to receive the water ofcondensation abstracted from the air by said refrigerant-evaporatormeans, a pump for forcing the water of condensation from said pan, anelectric motor within the housing, and means connected to the motor foroperating both the fan and the pump.

16. In a device of the type described, a support, a housing secured tosaid support, a fan within the housing, a refrigerant-evaporatorsurrounding the fan within the housing, the bottom and top of saidhousing formed with openings to admit air to the fan, and spacedhorizontal members defining openings in the side of said housing aroundthe refrigerant-evaporator to diffuse outwardly in all directions theair forced past said coil by the fan.

17. In a cooling unit, the combination with a container having-itsopening directed upwardly, of a plurality of cooling coils supportedwithin the container, a motor operated fan positioned within the coilsand operating to draw air through the opening in the container, andlouvers in the sides of the container for discharging the air anddirecting the same downwardly.

DON E. DASHER.

